许多化学反应不是发生在纯固体、纯液体或纯气体之间,而是发生在溶解于水中或别的溶剂中的离子和分子之间。
Most chemical reactions take place, not between pure solids, liquids, or gases, but among ions and molecules dissolved in water or other solvents.
而当它们达到地球的表面时,它们就与空气反应——把空气的分子转变成为称作为离子的带电粒子。
And when they arrive at the Earth's surface they react with the air - converting air molecules into charged particles known as ions.
阴离子聚合过程中往往存在转移反应,会生成低分子量齐聚物。
In the course of anionic polymerization, there are a few transfer reactions and oligomer formation.
自由基分子及分子离子光谱在天体演化、化学反应动力学、医学等方面具有重要意义。
Free radicals and molecular ions play an important role in the study of interstellar medium, chemical reaction dynamics and medicines.
其结果证实:在种种分子重排反应中,总是趋向于生成结构更稳定的碳正离子或碳负离子或自由基中间体及其产物。
Their result affirm: in all sorts of molecular rearrangement reactions, anyway tend to produce more stable carbocation, or carboanion, or free radical middle substance and their products.
水黑云母与HDTMA反应存在离子交换和分子吸附两种机制。
The interaction of HDTMA with hydrobiotite includes ion-exchange and molecular uptake.
从离子碎裂反应机理的角度,分析了火焰中样品分子裂解和电离的可能机理,并总结出可能影响电离效率的相关因素。
The possible mechanism of split and ionization of sample molecules in flame is analyzed from the view point of fragmentation reaction.
本文综述了近十年来强碱阴离子交换树脂支载的高分子试剂在氧化,还原,卤化和亲核取代反应中的应用。
This review deals with the recent application of strongly basic anion exchange resins as polymer supported reagents in oxidation, reduction, halogenation and nucleophilics substitutions, etc.
通过红外光谱分析了改性多元醇防塌剂的分子结构,证明阳离子化反应引入了正氮基团;
It was proved that the modified PVA has ortho-nitrogen radicals by molecular structure analysis through infrared spectrum.
采用高分子有机螯合剂与废水中的多种重金属离子发生螯合反应,生成稳定且不溶于水的金属螯合物来去除废水中的重金属离子。
Using organic chelating agent to response with several kinds of heavy metal ion, then the heavy metal ion will be reduced by forming the product with high stability and hardly dissolved by water.
对碱性条件下的分子筛离子水热交换反应进行了研究。
Ion exchange and hydrothermal reactions of zeolite under alkaline conditions are studied.
用激光溅射-分子束技术,研究了几种过渡金属离子与乙腈团簇分子的气相化学反应。
Reactions of transition metals with acetonitrile clusters in the gas phase are studied using laser ablation-molecule beam technique.
研究了聚合溶剂,单体浓度,反应温度以及配合物中稀土离子性质对催化活性和所得聚苯乙烯分子量的影响。
The effects of the solvent, monomer concentration, temperature and rare earth element on the polymerization and the molecular weight of polymer were investigated.
等离子体中离子、原子或分子具有高的反应活性,等离子体技术在金刚石薄膜的制备中有着广泛应用。
Plasma includes many reactive species such as ions, atoms and molecules, and as result it has wide applications in the preparation of diamond films.
重离子反应中的中间结构显示出分子振转谱的特性。
In heavy ion reactions, the intermediate structure phenomena show the properties of the rotation-vibration spectra of molecules.
氧化、还原都指反应物(分子、离子或原子)。
Oxidation, reduction of all the reactants (molecules, ions or atoms).
采用密度泛函理论研究了氧负离子自由基与苯分子的反应。
The reaction mechanism between atomic oxygen radical anion and benzene has been investigated using the density functional theory (DFT).
另一类是酰化花色素苷与辅助色素以分子间辅助着色方式而形成的复合花色素,这类花色素经常包含金属离子参与的螯合反应。
Another type is that the acylated anthocyanin complex with co-pigments, metals are cheated sometimes, and which abides by intermolecular co-pigmentation mechanism.
在酸性废水中主要发生臭氧与4 -氯酚分子和4 -氯酚盐离子的反应,而臭氧在水溶液中分解形成的羟基自由基的氧化作用可以忽略。
The main reactions taking place in the acid aqueous solution were those between ozone and 4-chlorophenol and 4-chlorophenol salt ion.
讨论了腔中反应过程对离子准分子形成的影响。
The effect of the reactions on production of ionic excimer is discussed.
此外,还进一步讨论了分子筛和离子液体在同一有机反应中的催化作用机理以及影响产物选择性的主要因素。
Furthermore, the catalytic mechanisms and impact factors on the product selectivity for a same organic reaction by zeolite and ionic liquid catalysis were discussed.
它是唯一以超氧阴离子自由基为底物的酶,可以催化超氧阴离子的歧化反应产生分子氧和过氧化氢,在南极细菌对恶劣环境的适应中具有重要作用。
These enzymes act to disproportionate two molecules of superoxide anion to hydrogen peroxide and water, and plays important role in extreme environment adaptation of Antarctic microorganism.
结果表明,射频功率的改变直接影响到离子对衬底的轰击效应,而反应气压的改变影响气体分子的平均自由程。
Results show that the change of power affects ions' bombardment on the substrate, and that of pressure lead to the change of the mean free path of the molecular.
激光烧蚀-分子束(LA - mb)法是研究金属离子与分子团簇反应的有效方法。
Laser ablation-molecular beam (LA-MB) is a useful method to study metal ion reacting with molecular clusters.
在边界等离子体中氢及其同位素分子与电子碰撞可以发生解离反应。
Electron impact-induced dissociation by hydrogen and its isotopic molecule will occur in edge plasma.
离子-分子反应可用于痕量气体分析研究。
Ion-molecule reaction can be used for the analysis of trace gases.
离子-分子反应可用于痕量气体分析研究。
Ion-molecule reaction can be used for the analysis of trace gases.
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